Howdy there,
I think that saying "Syrtis is overpopulating all realms especially Alsius" is easy, I think it's more a timezone matter.
Yes, in the afternoon (GMT time), Syrtis overpop Alsius and is usually holding trelle for hours against very few Alsius (mostly low-lvl), chasing them till the realm gate and really it's boring even for us (now even thinking at "trelle" makes me dizzy
), and I hope we will stop it... but since few days, I noticed that Alsius can bring huge zergs and hold forts for hours (it was rarely the case some times ago) ; like today evening we had a nice bridge war with Alsius at pp and they had a bigger zerg than ours (they were 20 at least), and we were zerged many times by them ; later they farmed us for a long time at herb ; Yesterday in the night, they held Meni for a long time too, etc...
So I don't think that Alsius really lacks of numbers (now).. maybe Syrtis is overpopulated, but not enough to make a real disbalance who can justify closing the inscriptions in Syrtis realm (and don't forget there's plenty of low-lvl in our side too). I think more it's a timezone matter, where each realm is more active during some hours than the others...
... like Ignis farming us for hours at herb late in the night (and usually trying to invade us)...
Really you should really try to plan and organize an invasion, and see your full potential.
My two cents,
Best regards. (sorry for the crappy english)